WO2004025341A1 - Printed circuit board comprising electrical conductor paths and means for electro-optical and/or opto-electrical conversion - Google Patents
Printed circuit board comprising electrical conductor paths and means for electro-optical and/or opto-electrical conversion Download PDFInfo
- Publication number
- WO2004025341A1 WO2004025341A1 PCT/DE2003/002729 DE0302729W WO2004025341A1 WO 2004025341 A1 WO2004025341 A1 WO 2004025341A1 DE 0302729 W DE0302729 W DE 0302729W WO 2004025341 A1 WO2004025341 A1 WO 2004025341A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- optical
- circuit board
- printed circuit
- electrical
- board according
- Prior art date
Links
- 239000004020 conductor Substances 0.000 title claims abstract description 25
- 238000006243 chemical reaction Methods 0.000 title claims description 3
- 230000003287 optical effect Effects 0.000 claims abstract description 86
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 3
- 239000011147 inorganic material Substances 0.000 claims description 3
- 239000011368 organic material Substances 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 229910010272 inorganic material Inorganic materials 0.000 claims description 2
- 235000012239 silicon dioxide Nutrition 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 239000002019 doping agent Substances 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 8
- 239000000835 fiber Substances 0.000 description 6
- 230000010354 integration Effects 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 229910052691 Erbium Inorganic materials 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- UYAHIZSMUZPPFV-UHFFFAOYSA-N erbium Chemical compound [Er] UYAHIZSMUZPPFV-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000009021 linear effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000009022 nonlinear effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0274—Optical details, e.g. printed circuits comprising integral optical means
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/4214—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical element having redirecting reflective means, e.g. mirrors, prisms for deflecting the radiation from horizontal to down- or upward direction toward a device
Definitions
- the invention relates to a printed circuit board according to the preamble of claim 1.
- the performance of the processors can only be used • if the external connections enable the transmission and processing, such as switching, multiplexing and demultiplexing of these high frequencies.
- optical components are increasingly being used for transmission.
- the optical technology avoids electrical problems. So far, these optical components have been attached to printed circuit boards.
- the optical components are connected using optical fibers.
- the optical fibers of one or more circuit boards are through Splicing or optical connectors connected together. They often lead to other discrete components. These structures avoid electrical problems, but are relatively complex to construct and cost-intensive.
- the object of the present invention is to demonstrate a simple connection technique for optical components.
- optical circuits can also be integrated and the power supply to optical components or the control of optical components can be implemented by means of electrical circuits on a printed circuit board.
- the optical conductor tracks or connections are designed as optical waveguides. This has the advantage of particularly low-loss and low-distortion connections.
- the circuit board is designed as a multilayer board, i.e. it consists of several
- a layer can contain electrical or optical connections. Mixed forms are also possible.
- the layers of electrical and optical connections or conductor tracks do not have to be alternating. It can also be several layers of one type, which in turn lie over several layers of the other type.
- the inner conductor tracks can be reached through orthogonal accesses with respect to the level of the conductor tracks. Likewise, the conductor tracks can be designed to be led out laterally.
- the use of a multilayer circuit board has the advantage that complex electrical and optical circuits can be integrated on a circuit board.
- the optical components or components are integrated in the circuit board.
- integrated optics are possible. That For example, micro-electrical-mechanical systems, or MEMS for short, are integrated, which optionally emit an optical signal at one of two outputs. This allows the advantages of integrated optics to be combined with the advantages of electronics on the circuit board.
- linear and nonlinear optical effects can advantageously be integrated on a circuit board.
- Figure 1 is a schematic representation of a circuit board with an electrical and an optical level and an electro-optical component.
- Figure 2 shows an embodiment with a multilayer board.
- Figure 3 shows another embodiment with a multilayer board that carries optical signals of different wavelengths.
- X Figure 4 shows a detail for an embodiment of an optical layer in a perspective cross-sectional view.
- Figure 5 is a block diagram of an add / drop multiplexer.
- FIG. 6 shows an internal structure of the add / drop multiplexer according to FIG. 5.
- Figure 1 shows a circuit board LP.
- This consists of a base layer 1, an optical layer 2, which has an optical conductor track 3, for example an optical waveguide, an electrical layer 4, which is electrically insulating and has electrically conductive conductor tracks 5.
- An electro-optical component 6 is connected to the electrical conductor tracks and is arranged on a connection opening 7 to the optical layer 2.
- the optical side of the electro-optical component 6 is optically effectively connected to the optical conductor track 3 by means of an optical coupling element 8, for example a mirror or a micro-electrical-mechanical system, abbreviated MEMS.
- MEMS micro-electrical-mechanical system
- FIG. 2 shows an analogous representation to Figure 1, with the difference that further layers are shown.
- FIG. 2 shows two optical layers 2 and two electrical layers or levels 4 with conductor tracks (not shown), a connection opening 7 and an optical coupling element 8.
- the arrow 9, which leads from the optical conductor track 3 to the optical coupling element 8, and the arrow 10, which leads outward from the optical coupling element 8, schematically shows the path of an optical signal that is coupled in or out.
- FIG. 3 shows, analogously to FIG. 2, a circuit board with several layers, for example a multilayer board or multilayer circuit board.
- the optical Layers transmit different optical signals, for example different wavelengths.
- FIG. 4 shows a section of an embodiment of the optical layer 2. It consists of a first partial layer T1 with a first refractive index n1. A second sub-layer T2 with a second refractive index n2 is arranged above it. This has a light-conducting or light-wave-conducting cross-sectional profile, in the example this is an elevated rectangular channel. A further partial layer 3 with a third refractive index n3 is arranged on the partial layer 2.
- the refractive index of the middle sub-layer T2 must be greater than that of the lower and upper sub-layers Tl and T3, i.e. the condition n2> nl and n2> n3 must be fulfilled.
- deviating refractive index ratios are also conceivable.
- the rectangular channel of the sub-layer 2 acts as an optical conductor.
- FIG. 5 shows a block diagram of an add / drop multiplexer.
- a wavelength multiplex signal WDM is fed to input E. This consists of several independent optical signals that are transported on different wavelengths.
- the signal of one wavelength can be routed to the outside - the so-called drop side - and taken from the respective output Dl ... Dn.
- a signal of an unused or outward channel of the wavelength division multiplex signal can be added. This is done on the Add page at the respective input AI ... An.
- a correspondingly changed wavelength division multiplex signal WDM is output at output Z.
- the wavelength division multiplex signal WDM is fed to a demultiplexer DEMUX. This divides the supplied signal into several partial signals according to the number of channels. A channel is shown in the illustration. This
- Partial signal is fed to a first optical filter FI1, which forwards a filtered signal to an add / drop device ADE.
- a first optical filter FI1 which forwards a filtered signal to an add / drop device ADE.
- This can be implemented, for example, as a micro-electrical-mechanical system, or MEMS for short.
- the signal coupled in or out can optionally be amplified by means of amplifiers VI and V2.
- This arrangement is usually constructed discretely. It can be advantageously integrated by using the circuit board according to the invention.
- the demultiplexers, filters, micro-electrical-mechanical systems, amplifiers and multiplexers can be integrated on a circuit board together with the control electronics or further processing electronics.
- electro-optical, optical-electrical or optical means which comprise passive and active functions and are based on organic and / or inorganic materials, micro-electrical-mechanical systems, MEMS for short, optical filters such as gain flatness filters and tilt filters, optical switches, optical amplifiers, such as erbium or other rare earths, doped fiber amplifiers or semiconductor laser amplifiers, laser diodes, photodiodes, arrayed waveguide grating, AWGs for short, branches or taps, optical modulators, such as mach Zehnder modulators or electrical
- Absorption modulators and other means of this type include.
- electro-optical means such as laser diodes, refractive index-changing components, optical amplifiers, optical switches, and optical-electrical means, such as photodiodes
- passive such as switching, damping, and active
- active such as amplifying , non-linear effects, functions
- polymer can be used instead of glass, silicon oxide or silicon dioxide for the optical conductor tracks.
- Optical amplifiers such as erbium-doped fiber amplifiers, EDFA for short, erbium-doped waveguide amplifiers, EDWA for short, semiconductor laser amplifiers or semiconductor optical amplifiers, SOA for short, consist of several components such as monitor photodiodes, pump lasers, filters and fiber splices.
- Optical amplifiers can advantageously be integrated by using the circuit board according to the invention.
- the multilayer board comes with optical and electrical
- Optical waveguides and suitable optical switches are introduced into the optical layers, which consist of thin glass or polymers and optionally have dopings, for example with erbium, which enable the optical signal to be coupled in and out.
- Optical signals that are fed in or out can be fed to a fiber connector or a fiber connector strip, which is arranged on, in, on or near the printed circuit board.
- the electrical and optical contacts or connecting elements of the printed circuit board can be combined or designed individually. Three-dimensional optical structures can also be integrated into the circuit board.
- the optical signal can be passed on from one layer to another layer and can supply various means, components or components.
- optical signals can be bundled or separated in integrated multiplexers, demultiplexers, splitters, tap couplers.
- the optical layer can by
- Doping optical amplifiers can be realized that compensate for losses or bring about an adaptation of the light signal.
- the electrical layers take over the power supply, monitoring and control of the electrical, electronic, electro-optical, optical-electrical and optical components.
- circuit boards according to the invention can not only be used in data and telecommunications technology, but also, for example, in automotive technology, medical technology, power plant technology, etc.
- the advantages mentioned and the advantages resulting from the optical integration include, in addition to the reduction in the overall dimensions and the improved repeatability in production, the following.
- An integrated solution in the circuit carrier or the printed circuit board is possible instead of individual components.
- An integrated arrangement generally requires smaller electrical field dimensions, ie less energy, which in turn means fewer disturbances, such as due to electromagnetic incompatibility, or EMC for short.
- EMC electromagnetic incompatibility
- a circuit board can contain a complete optical add / drop multiplexer.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optical Integrated Circuits (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03794788A EP1535093A1 (en) | 2002-09-05 | 2003-08-13 | Printed circuit board comprising electrical conductor paths and means for electro-optical and/or opto-electrical conversion |
US10/525,631 US20060104562A1 (en) | 2002-09-05 | 2003-08-13 | Printed circuit board comprising electrical conductor paths and means for electro-optical and/or opto-electrical conversion |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10241203.0 | 2002-09-05 | ||
DE10241203A DE10241203A1 (en) | 2002-09-05 | 2002-09-05 | Circuit board e.g. for add-drop multiplexer in optical communications, has electro-optical and/or opto-electrical component coupled with electrical and optical conductor paths |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004025341A1 true WO2004025341A1 (en) | 2004-03-25 |
Family
ID=31895680
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2003/002729 WO2004025341A1 (en) | 2002-09-05 | 2003-08-13 | Printed circuit board comprising electrical conductor paths and means for electro-optical and/or opto-electrical conversion |
Country Status (5)
Country | Link |
---|---|
US (1) | US20060104562A1 (en) |
EP (1) | EP1535093A1 (en) |
CN (1) | CN1678930A (en) |
DE (1) | DE10241203A1 (en) |
WO (1) | WO2004025341A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004354532A (en) * | 2003-05-27 | 2004-12-16 | Seiko Epson Corp | Optical module, its manufacturing method, optical communication device, and electronic apparatus |
US8346087B2 (en) * | 2007-09-28 | 2013-01-01 | Oracle America, Inc. | Wavelength-division multiplexing for use in multi-chip systems |
KR101246137B1 (en) * | 2008-12-19 | 2013-03-25 | 한국전자통신연구원 | Light emitting device and optical coupling module |
US7949211B1 (en) | 2010-02-26 | 2011-05-24 | Corning Incorporated | Modular active board subassemblies and printed wiring boards comprising the same |
EP2643725A1 (en) * | 2010-11-25 | 2013-10-02 | Fci | Optical circuit board |
CN104730653B (en) * | 2013-12-23 | 2016-08-31 | 华为技术有限公司 | Optical interconnection system and method |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0592874A1 (en) * | 1992-10-13 | 1994-04-20 | Robert Bosch Gmbh | Integrated optical polarization diversity receiver with 3dB coupler and two polarization splitters |
US5521992A (en) * | 1994-08-01 | 1996-05-28 | Motorola, Inc. | Molded optical interconnect |
US5761350A (en) * | 1997-01-22 | 1998-06-02 | Koh; Seungug | Method and apparatus for providing a seamless electrical/optical multi-layer micro-opto-electro-mechanical system assembly |
US6363183B1 (en) * | 2000-01-04 | 2002-03-26 | Seungug Koh | Reconfigurable and scalable intergrated optic waveguide add/drop multiplexing element using micro-opto-electro-mechanical systems and methods of fabricating thereof |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6693736B1 (en) * | 1992-09-10 | 2004-02-17 | Fujitsu Limited | Optical circuit system and components of same |
JP3439533B2 (en) * | 1994-06-24 | 2003-08-25 | 富士通株式会社 | SDH2-fiber ring optical multiplexer having selective protection function |
DE19826648B4 (en) * | 1998-06-16 | 2005-07-28 | Siemens Ag | Circuit carrier with an optical layer and optoelectronic component |
US6706546B2 (en) * | 1998-10-09 | 2004-03-16 | Fujitsu Limited | Optical reflective structures and method for making |
JP3728147B2 (en) * | 1999-07-16 | 2005-12-21 | キヤノン株式会社 | Opto-electric hybrid wiring board |
EP1116973A1 (en) * | 2000-01-11 | 2001-07-18 | Corning Incorporated | Athermalized integrated optical waveguide devices |
CA2300780C (en) * | 2000-03-15 | 2007-08-07 | Nortel Networks Corporation | Integrated photonic switch |
US6738538B2 (en) * | 2000-10-25 | 2004-05-18 | Patrick R. Antaki | Method to construct optical infrastructure on a wafer |
US6694068B2 (en) * | 2000-11-17 | 2004-02-17 | Viasystems Technologies Corp. | PCB embedded and surface mounted optical distribution systems |
US6839478B2 (en) * | 2001-05-01 | 2005-01-04 | Terraop Ltd. | Optical switching system based on hollow waveguides |
US6801679B2 (en) * | 2001-11-23 | 2004-10-05 | Seungug Koh | Multifunctional intelligent optical modules based on planar lightwave circuits |
US6787919B2 (en) * | 2001-12-27 | 2004-09-07 | Intel Corporation | Flip-chip opto-electronic circuit |
US6909824B1 (en) * | 2002-03-05 | 2005-06-21 | Avi Messica | Mechanically actuated evanescent-wave coupled optical devices |
-
2002
- 2002-09-05 DE DE10241203A patent/DE10241203A1/en not_active Withdrawn
-
2003
- 2003-08-13 CN CN03821094.0A patent/CN1678930A/en active Pending
- 2003-08-13 US US10/525,631 patent/US20060104562A1/en not_active Abandoned
- 2003-08-13 EP EP03794788A patent/EP1535093A1/en not_active Ceased
- 2003-08-13 WO PCT/DE2003/002729 patent/WO2004025341A1/en not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0592874A1 (en) * | 1992-10-13 | 1994-04-20 | Robert Bosch Gmbh | Integrated optical polarization diversity receiver with 3dB coupler and two polarization splitters |
US5521992A (en) * | 1994-08-01 | 1996-05-28 | Motorola, Inc. | Molded optical interconnect |
US5761350A (en) * | 1997-01-22 | 1998-06-02 | Koh; Seungug | Method and apparatus for providing a seamless electrical/optical multi-layer micro-opto-electro-mechanical system assembly |
US6363183B1 (en) * | 2000-01-04 | 2002-03-26 | Seungug Koh | Reconfigurable and scalable intergrated optic waveguide add/drop multiplexing element using micro-opto-electro-mechanical systems and methods of fabricating thereof |
Non-Patent Citations (1)
Title |
---|
See also references of EP1535093A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN1678930A (en) | 2005-10-05 |
DE10241203A1 (en) | 2004-03-25 |
EP1535093A1 (en) | 2005-06-01 |
US20060104562A1 (en) | 2006-05-18 |
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